Created to replace failed shelf pins caused by overloading a kitchen cupboard shelf. One bracket has a pin intended to replace the failed pin by inserting the pin of the bracket into the back wall and then fasten it in place with two short screws, at most, 1/2 inch long. This replacement permit you to place much heavier items on the shelf.

The pinless bracket can be added as a supplementary support along the back shelf. The larger bracket is to go on the back inside of the front upright. The pinless bracket could be used however the larger one is to cover any potential gap between the edge of the shelf and the cupboard wall. Although it is larger, if you place correctly, it will be out of sight.